RESEARCH STATUS AND PROSPECTS ON THE MECHANISM AND PRE-VENTION OF TUNNEL DISEASE IN MINED-OUT SUBSIDENCE AREAS
Coal is one of the main sources of energy in China,and coal mining has caused a large number of mined-out subsidence areas.With the increasing density of highway and railway networks,more and more tunnels have to cross the coal mined-out subsidence areas in Shanxi and other coal mining provinces.Due to the severe damage,large deformation,and long duration of the rock strata in mined-out subsidence areas,it is a major safety hazard in tunnel construction and operation.Therefore,it is important to systematically study the tunnel disaster mechanism,prevention,and control technology in mined-out subsidence areas to ensure safety.By analyzing the engineering cases reported in the literature,this paper summarizes the main types of issues and disaster mechanisms of tunnels in mined-out subsidence areas,reviews the methods for long-term deformation prediction of mining-in-duced rock masses in subsidence areas and tunnel disaster prediction methods,and introduces the methods for de-formation control of mining-induced rock masses in subsidence areas and treatment methods for the surrounding rock masses of tunnels that cross the mined-out region.Based on this,this paper analyzes the prominent problems in the research on tunnel disasters and prevention and control technology in mined-out subsidence areas and outlines the urgent research directions.
Mined-out subsidence areaTunnelMechanism of disasterThe disaster prevention and control
万方数据
维普
